Kerastase Genesis Serum Fortifiant Fortifying Serum 90ml 3.04oz Holistic eight times more effective than Color:At Night eight times more effective than standard Retinol Helps stimulate rejuvenation process by boosting skin's natural production of collagen Reduces wrinkles Delivers vitamin A derivatives to skin via a sustained release system Improves skin texture & accelerates exfoliation Reduces appearance of fine lines Ginger Root Extract & Edelweiss Native Cells Helps stimulate healthy hair growth by supporting strong blood flow to the roots of hair cells Strengthens hair day after day while reducing breakage Unveils healthy & nourished hair Silicone free A daily fortifying serum for weakened hair that is prone to falling due to breakage from brushing Formulated with Arginine